1/4 teaspoon Salt
1/4 teaspoon baking powder
1/2 cup powdered sugar
1 cup butter
Sift together the flour, salt, and baking powder. Mix butter and sugar until creamy. Add sifted ingredients. Chill dough for about an hour to make it easier to roll out. Roll out to 1/4" thickness on lightly-floured board or wax paper. Cut into desired Christmas shapes.
Bake on ungreased sheet at 325 degrees. for 10 to 15 minutes.